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Experimental analysis of operational data for roundabouts through advanced image processing

Journal of Traffic and Transportation Engineering(English Edition) 2020年第4期7卷 482-497页

作者： marco Bassani Lorenzo Mussone Department of Environment Land and Infrastrwcture EngineeringPolitecnico di TorinoTorino 10129Italy Department of Architecture Built Environment and Construction EngineeringPolitecnico di MilanoMilano 20133Italy

Roundabout is still the focus of several investigations due to the relevant number of variables affecting their operational performances(i.e.,capacity,safety,emissions).To develop reliable models,investigations should be supported by devices and relate d sensors to extract variables of interest(i.e.,flow,speed,gap,lag,follow-up time,vehicle classification and trajectory).Notwithstanding that several sensors and technolo gies are currently used for data collection,most of them present *** paper presents the investigation carried out to survey vehicle movem ents at roundabouts as a comprehensive video image analysis system is able to derive the origin/destination(O/D)matrix,compile a vehicle classification,track individual vehicle trajectories together with corresponding speeds and accelerations along *** this end,the authors collected video-sequences that were analysed with a piece of software developed for that *** minimize the problems due to perspective distortion,environmental effects,and obstructions,a number of camera set-up configurations were adopted with equipment being placed on central or external poles,and on permanent fixtures such as raised working platforms outside the confines of the intersection *** of those installation set-ups with different vehicle tracking strategies has been ***,speed has been successfully related to trajectory tortuosity,the result of which emphasizes the tremendous potential of image analysis and opens up to further studies on the evaluation of the operational effects of roundabout geometrics.

关键词： Transportation Roundabout Image analysis/processing Vehicle tracking and classification Operating speed Trajectory

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Laparoscopic approach to gastrointestinal malignancies: Toward the future with caution

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World Journal of Gastroenterology 2014年第7期20卷 1777-1789页

作者： Lapo Bencini marco Bernini marco Farsi Division of Surgical Oncology Department of OncologyCareggi University Hospital50134 FlorenceItaly

After the rapid acceptance of laparoscopy to manage multiple benign diseases arising from gastrointestinal districts,some surgeons started to treat malignancies by the same ***,if the limits of laparoscopy for benign diseases are mainly represented by technical issues,oncologic outcomes remain the foundation of any procedures to cure *** patients represent an important group with peculiar aspects including reduced survival expectancy,worsened quality of life due to surgery itself and adjuvant therapies,and challenging psychological *** these issues could,potentially,receive a better management with a laparoscopic surgical *** order to confirm such aspects,similarly to testing the newest weapons(surgical or pharmacologic)against cancer,long-term follow-up is always recommendable to assess the real benefits in terms of overall survival,cancer-free survival and quality of ***,it seems of crucial importance that surgeons will be correctly trained in specific oncologic principles of surgical oncology as well as in modern miniinvasive ***,laparoscopic treatment of gastrointestinal malignancies requires more caution and deep analysis of published evidences,as compared to those achieved for inflammatory bowel diseases,gastroesophageal reflux disease or diverticular *** review tries to examine the evidence available to date for the use of laparoscopy and robotics in malignancies arising from the gastrointestinal district.

关键词： Gastrointestinal cancer Laparoscopic Oncology Laparoscopic surgery Robotic surgery Surgical outcomes Oncologic outcomes

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Schistura sexnubes, a new diminutive river loach from the upper Mekong basin, Yunnan Province, China （Teleostei： Cypriniformes： Nemacheilidae）

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Zoological Research 2014年第1期35卷 59-66页

作者： marco Endruweit Qingshan Road 601 Qingdao China

An ichthyofaunistic survey of Mekong tributaries in Lincang Prefecture, Yunnan Province, China yielded a new species of nemacheilid loach, herein described as Schistura sexnubes species nova. The new species is readily distinguishable from its congeners by the following combination of characters： 8＋8 branched caudal fin rays, an incomplete lateral line, a dissociated caudal bar, a shallow caudal peduncle depth （7.6%-9.6% SL; respectively caudal peduncle 1.76-1.95 times longer than deep）, a diminutive size of less than 50 mm SL, and no sexual dimorphism. A dorsocephalic pattern consisting of a black, forward directed V-shaped formation located between the nares, and a white, ovoid blotch on the upper operculum serves as an autapomorphy.

关键词： Schistura sexnubes New species Mekong basin Nemacheilidae Yunnan

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A Theory of the Risk for Empirical CVaR with Application to Portfolio Selection

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Journal of Systems Science & Complexity 2021年第5期34卷 1879-1894页

作者： ARICI Giorgio CAMPI marco C. CARE Algo DALAI marco RAMPONI Federico A. Department of Information Engineering University of Bresciavia Branze 3825123 BresciaItaly.

When decisions are based on empirical observations,a trade-off arises between flexibility of the decision and ability to generalize to new *** this paper,we focus on decisions that are obtained by the empirical minimization of the Conditional Value-at-Risk(CVa R)and argue that in CVa R the trade-off between flexibility and generalization can be understood on the ground of theoretical results under very general assumptions on the system that generates the *** results have implications on topics related to order and structure selection in various applications where the CVa R risk-measure is used.A study on a portfolio optimization problem with real data demonstrates our results.

关键词： Distribution-free results empirical CVa R generalization order selection risk scenario approach

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An Iterative Multigrid Regularization Method for Toeplitz Discrete Ill-Posed Problems

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Numerical Mathematics(Theory,Methods and Applications) 2012年第1期5卷 43-61页

作者： marco Donatelli Dipartimento di Fisica e Matematica Universitàdell’InsubriaVia Valleggio11Como 22100Italia

Iterative regularization multigrid methods have been successful applied to signal/image deblurring *** zero-Dirichlet boundary conditions are imposed the deblurring matrix has a Toeplitz structure and it is potentially full.A crucial task of a multilevel strategy is to preserve the Toeplitz structure at the coarse levels which can be exploited to obtain fast *** smoother has to be an iterative regularization *** grid transfer operator should preserve the regularization property of the *** paper improves the iterative multigrid method proposed in[11]introducing a wavelet soft-thresholding denoising *** postsmoother avoids the noise amplification that is the cause of the semi-convergence of iterative regularization methods and reduces ringing *** resulting iterative multigrid regularization method stabilizes the iterations so that and imprecise(over)estimate of the stopping iteration does not have a deleterious effect on the computed *** examples of signal and image deblurring problems confirm the effectiveness of the proposed method.

关键词： Multigrid methods Toeplitz matrices discrete ill-posed problems

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High-dimensional neural network potentials for magnetic systems using spin-dependent atom-centered symmetry functions

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npj Computational Materials 2021年第1期7卷 1541-1551页

作者： marco Eckhoff Jörg Behler Universität Göttingen Institut für Physikalische ChemieTheoretische ChemieTammannstrasse 637077 GöttingenGermany Universität Göttingen International Center for Advanced Studies of Energy Conversion(ICASEC)Tammannstrasse 637077 GöttingenGermany

Machine learning potentials have emerged as a powerful tool to extend the time and length scales of first-principles quality ***,most machine learning potentials cannot distinguish different electronic spin arrangements and thus are not applicable to materials in different magnetic *** we propose spin-dependent atom-centered symmetry functions as a type of descriptor taking the atomic spin degrees of freedom into *** used as an input for a high-dimensional neural network potential(HDNNP),accurate potential energy surfaces of multicomponent systems can be constructed,describing multiple collinear magnetic *** demonstrate the performance of these magnetic HDNNPs for the case of manganese oxide,*** method predicts the magnetically distorted rhombohedral structure in excellent agreement with density functional theory and *** efficiency allows to determine the Néel temperature considering structural fluctuations,entropic effects,and *** method is general and is expected to be useful also for other types of systems such as oligonuclear transition metal complexes.

关键词： magnetic symmetry neural

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Taxonomical notes on selected freshwater fish species described from northern and central Vietnam （Cypriniformes： Balitoridae, Cobitidae, Cyprinidae, Nemacheilidae; Perciformes： Channidae, Osphronemidae; Synbranchiformes： Mastacembelidae）

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Zoological Research 2014年第2期35卷 142-159页

作者： marco Endruweit Qingshan Road 601 Qingdao China

Selected,little known taxa of northern and central Vietnamese freshwater fish species are *** acts are taken:Hemibarbus lehoai is placed in synonymy of ***,Paracobitis hagiangensis in synonymy of Schistura caudofurca.A neotype of Micronemacheilus bacmeensis is *** name Channa hanamensis is treated as a nomen *** labeonine species described from China are nomenclaturally affected:Garra findolabium is transferred to Vinagarra and its specific epithet is treated as a noun in apposition;the specific epithet of Sinigarra napoense is corrected to napoensis.

关键词： New species Ichthyology Taxonomy Nomenclature Vietnam

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On some examples of obstructed irregular surfaces

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Science China Mathematics 2011年第8期54卷 1713-1724页

作者： MANETTI marco Dipartimento di Matematica "Guido Castelnuovo" Universita degli studi di Roma La SapienzaRoma I-00185Italy

We determine the base space of the Kuranishi family of some complete intersections in the product of an abelian variety and a projective *** a consequence,we obtain new examples of obstructed irregular surfaces with a... 详细信息

关键词： algebraic surfaces deformation theory Kuranishi family

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Coal petrology analysis and implications in depositional environments from upper Cretaceous to Miocene:a study case in the Eastern Cordillera of Colombia

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International Journal of Coal Science & Technology 2021年第5期8卷 869-896页

作者： Clara Guatame marco Rincon Servicio Geologico Colombiano diagonal 53 n.°34-53BogotaColombia

The Piedemonte Llanero Basin is located on the eastern side of the Eastern Cordillera of the Colombian *** has been the subject of numerous geological studies carried out for the oil sector,*** study presents the coalpetrographical features of 15 coal seams of four geological formations from Late Cretaceous to Middle Miocene(Chipaque formation,Palmichal group,Arcillas del Limbo formation,and San Fernando formation).Analysis of 33 samples indicates enrichment in vitrinite,while liptinite and inertinite concentrations vary according to the stratigraphic *** indicates that the coal range gradually decreases from highly volatile bituminous C(Chipaque formation)to subbituminous C(San Fernando formation).The microlithotypes with the highest concentrations are clarite and *** composition and coal facies indicate changes in the depositional conditions of the *** precursor peat from Late Cretaceous to Late Paleocene accumulated under limnic conditions followed by telmatic in Late Eocene-Early *** coal facies indices show wet conditions in forest swamps with variations in the flooding surface,influxes of brackish water and good tissue *** tectonic conditions along the Piedemonte Llanero basin is evident,from post-rift to foreland basin,evidenced by oxic and anoxic periods reflected in the maceral composition and its *** coal environment corresponds to an estuarine system started in the Chipaque formation evolving to the lacustrine conditions in the San Fernando formation.

关键词： Eastern cordillera basin Northern Andes Coal Organic petrology

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The association of type and number of high-risk criteria with cancer-specific mortality in prostate cancer patients treated with radical prostatectomy

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Current Urology 2024年第2期18卷 128-132页

作者： Francesco Chierigo Rocco Simone Flammia GabrieleSorce Benedikt Hoeh Lukas Hohenhorst Andrea Panunzio Zhe Tian Fred Saad Marcus Graefen Michele Gallucci Alberto Briganti Francesco Montorsi Felix K.H.Chun Shahrokh F.Shariat Alessandro Antonelli Giovanni Guano Guglielmo Mantica marco Borghesi Nazareno Suardi Carlo Terrone Pierre I.Karakiewicz Department of Surgical and Diagnostic Integrated Sciences University of GenovaGenovaItaly IRCCS Ospedale Policlinico San Martino GenovaItaly Cancer Prognostics and Health Outcomes Unit Division of UrologyUniversity ofMontréal Health CenterMontréalQuébecCanada Department of Urology IRCCS Policlinico San MartinoGenovaItaly Department of Maternal-Child and Urological Sciences Sapienza Rome UniversityPoliclinico Umberto I HospitalRomeItaly Department of Urology University Hospital FrankfurtFrankfurt am MainGermany Martini-Klinik Prostate Cancer Center University Hospital Hamburg-EppendorfHamburgGermany Department of Urology University of VeronaAzienda Ospedaliera Universitaria Integrata di VeronaVeronaItaly Division of Experimental Oncology/Unit of Urology URIUrological Research InstituteIRCCS San Raffaele Scientific InstituteMilanItaly Department of Urology Comprehensive Cancer CenterMedical University of ViennaViennaAustria Department of Urology Weill Cornell Medical CollegeNew YorkNYUSA Department of Urology University of Texas SouthwesternDallasTXUSA Department of Urology Second Faculty of MedicineCharles UniversityPragueCzech Republic Institute for Urology and Reproductive Health I.M.Sechenov First Moscow State Medical UniversityMoscowRussia Division of Urology Department of Special SurgeryJordan University HospitalThe University of JordanAmmanJordan

Objectives:This study aimed to test the association between of type and number of D'Amico high-risk criteria(DHRCs)with cancer-specific mortality(CSM)in high-risk prostate cancer patients treated with radical *** and methods:In the Surveillance,Epidemiology,and End Results database(2004–2016),we identified 31,281 radical prostatectomy patients with at least 1 DHRC,namely,prostate-specific antigen(PSA)>20 ng/mL(hrPSA),biopsy Gleason Grade Group(hrGGG)score of 4 and 5,or clinical tumor stage≥T3(hrcT).Multivariable Cox regression models and competing risks regression models(adjusting for other cause mortality)tested the association between DHRCs and 5-year ***:Of 31,281 patients,14,394(67%)exclusively harbored hrGGG,3189(15%)harbored hrPSA,and 1781(8.2%)harbored *** 2132 patients(6.8%)harbored a combination of the 2 DHRCs,and 138(0.6%)had all 3 ***-year CSMrates ranged from 0.9%to 3.0%when any individual DHRC was present(hrcT,hrPSA,and hrGGG,in that order),1.6%to 5.9%when 2 DHRCs were present(hrPSA-hrcT,hrcT-hrGGG,and hrPSA-hrGGG,in that order),and 8.1%when all 3 DHRCs were *** regression models and competing risks regression confirmed the independent predictor status of DHRCs for 5-year CSM that was observed in univariable analyses,with hazard ratios from 1.00 to 2.83 for 1 DHRC,2.35 to 5.88 for combinations of 2 DHRCs,and 7.13 for all 3 ***:Within individual DHRCs,hrcT and hrPSA exhibited weaker effects than hrGGG ***,a dose-response effect was identified according to the number of ***,the type and number of DHRCs allow further risk stratification within the high-risk subgroup.

关键词： High risk prostate cancer Radical prostatectomy Cancer-specific mortality Staging SEER

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